Results for 5.56x45mm NATO Upper Receivers/Conv Kits

Daniel Defense DDM4v7 AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel

Geissele USASOC URG-I Near Clone AR-15 Complete Upper Receiver 5.56x45mm NATO 14.5" Pinned Barrel

Daniel Defense M4A1 AR-15 Complete Upper Recevier 5.56x45mm NATO 14.5" Pinned Barrel

Daniel Defense AR-15 M4A1 FSP Complete Upper Receiver 5.56x45mm 14.5" Pinned Surefire SF3P Flash Hider

Daniel Defense DDM4v7 Lightweight AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel

FightLite Industries MCR556DFRM Dual Feed Complete Upper Receiver 5.56x45mm 16.25" Barrel M-LOK Handguard

Spikes Tactical ST-15 Enhanced Mid-Length Complete Upper 5.56 / .223 Rem 16-inch CHF

Geissele AR-15 Super Duty MOD1 Complete Upper Receiver 5.56x45mm 16" Cold Hammer Forged Barrel M-LOK DDC

Geissele AR-15 Super Duty MOD1 Complete Upper Receiver 5.56x45mm 16" Cold Hammer Forged Barrel M-LOK Black

FightLite Industries Mission Configurable Rifle Upper 5.56 16.25 Barrel

FightLite Industries Mission Configurable Rifle Complete Upper 5.56 16.25 Threaded Barrel

Noveske AR-15 Chainsaw Complete Upper Receiver 5.56x45mm NATO 16" Barrel NSR-15 M-LOK Handguard Black

Spike s Tactical 16-inch AR-15 Complete Upper 5.56 NATO M4 LE with 9-inch Rail

FightLite MCR Dual-Feed 16.25" Upper 5.56x45mm 1:7 Mil-Std 1913 Picatinny Rail, Black

Rock River Arms AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel

Radian Weapons Model 1 Upper Flat Dark Earth 5.56 14 Handguard

Radian Weapons Model 1 Complete Upper Flat Dark Earth .223 Wylde 14.5 Barrel

Geissele AR-15 Super Duty MOD1 Complete Upper Receiver 5.56x45mm with Pinned 14.5" Cold Hammer Forged Barrel M-LOK Black

Battle Arms Development Workhorse AR-15 Upper 16 Barrel 5.56 NATO 15 M-LOK Handguard

Radical Firearms Complete Upper Assembly .223 Rem/5.56 16 Barrel MLOK

Spikes Tactical Complete Upper Receiver 5.56 NATO / .223 Rem 16 Barrel

Luth-AR AR-15 .223 Complete Upper Assembly 24 Barrel

Geissele AR-15 Super Duty MOD1 Pinned and Welded Complete Upper Receiver 5.56x45mm 13.9" Cold Hammer Forged Barrel M-LOK Black

Geissele AR-15 Super Duty MOD1 Complete Upper Receiver 5.56x45mm with Pinned 14.5" Cold Hammer Forged Barrel M-LOK DDC